Varier Variable Plus Variable™ Plus is an evolution of the iconic Variable™. Featuring a fixed backrest with an ergonomic padded cushion, this chair allows for a wide range of sitting positions while still providing the unmatched ergonomic functionality of the original chair. The padded backrest is wider and more contoured, allowing for a better lean back and more relaxation. The position is more balanced so that finding and maintaining a balanced position on Variable™ Plus is easy and intuitive. Variable™ Plus is available in a natural or black finish and in a wide range of upholstery fabrics and colors. The wooden sleds are made of beech plywood and ash veneer.